Confused about option 22 and redis

yes .. but i'd avoid redis object cache as it messages with wp admin related settings updates from user reports unless you want to be flushing redis cache after every wp admin config adjustment/updates

not advisable as that's where the whole performance is really - redis object cache doesn't do much at all for performance.

 

You'll have to manually remove and/or comment out the redis related entries in your domain nginx vhost file either or both domain.com.conf or domain.com.ssl.conf in /usr/local/nginx/conf/conf.d.

If switching to other offered caching via centmin.sh menu option 22 i.e. wp supercache or recommended keycdn cache enabler. Easiest way is to run a tests dummy domain run of centmin.sh menu option 22 with your desired alternative caching from centmin.sh menu option 22 i.e. for testdummy.domain.com and then inspect that testdummy.domain.com.conf and/or testdummy.domain.com.ssl.conf entries and see what needs change in your live domain.com.conf or domain.com.ssl.conf.

If it's test site with no data just removing entire vhost and site is an option too. To properly remove an Nginx vhost the instructions are on official site at How to delete Nginx vhost account for existing domain/subdomain ? as well as on each Nginx vhost creation's ending output too lists the commands.

You also get a log file for each Nginx vhost created which also lists the commands in 123.09beta01 and higher example for http2.domain.com remove log at /root/centminlogs/centminmod_140218-021218_nginx_addvhost_nv-remove-cmds-http2.domain.com.log

Code (Text):

ls -lahrt /root/centminlogs/ | grep remove
-rw-r--r--   1 root root 1.3K Feb 14 02:12 centminmod_140218-021218_nginx_addvhost_nv-remove-cmds-http2.domain.com.log

If it's none of the above so not test site so need to keep and just remove/commenting out redis caching, then you'll need to remove redis related entries in your vhost. So for example redis cached wordpress via centmin.sh menu option 22 means removing or commenting from your nginx vhost the following lines.

Example domain is testredis.domain.com with entries commented out

Code (Text):

#  include /usr/local/nginx/conf/wpincludes/testredis.domain.com/rediscache_testredis.domain.com.conf;

every reference to include /usr/local/nginx/conf/php-rediscache.conf commented out and replaced with default

Code (Text):

#include /usr/local/nginx/conf/php-rediscache.conf;
include /usr/local/nginx/conf/php.conf;

Then test nginx conf and restart nginx and php-fpm

Code (Text):

nginx -t
nprestart

 

And cache bypass Wordpress - WP Super Cache, KeyCDN Cache Enabler, Redis Cache User Agent Bypass for Wordpress